August 21 is generally a great time to visit Vancouver. While there is a slight chance of rain (17%), showers are usually brief. Expect comfortable 22°C weather. As it's peak season for Vancouver, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Vancouver
Currency
CAD
$ Canadian dollar
Language
English
+1 more
Driving
Right side
Connect
In anemergency, dial 9-1-1from any phone...
Safety
Very High Safety
GPI: 1.389
Vancouver Weather Forecast for August 21
"Mild & Comfortable. Expect average highs of 22.2°C. 17% chance of rain."
What to Wear in Vancouver in August
Based on historical data for August 21, Vancouver typically experiences temperatures between 14.3°C and 22.2°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (17% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Vancouver
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
22.2°C
Daytime Peak
Average Low
14.3°C
Nighttime Low
Feels Like
22.6°C
☀️ Feels accurate
Rain Chance
17%
Avg 1.1mm if it rains
Cloud Cover
49%
Overcast
Pressure
1015.2 hPa
Low volatility
Vancouver Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 21 min to burn
Type III-IV
🟡 32 min to burn
Type V-VI
🟢 53 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
17.6°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Canada
Flight Traffic
High
94/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~413
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Vancouver
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:14
☀️ Noon
12:17
🌇 Sunset
19:19
⏱️ Daylight
14h 5m
Wind Speed
10.3 km/h
Light breeze
Sunshine
10.8 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Vancouver
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Vancouver
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Vancouver on August 21 averages 22.2°C with a 17% precipitation probability. Wedding/Outdoor Event Score: 99/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Vancouver Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 14
23.9°C • 12% rain
Score
100
August 15
23.7°C • 10% rain
Score
100
August 16
23.5°C • 11% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Vancouver Worth Visiting on August 21?
Planning a trip to Vancouver on August 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 22.2°C with a 17% historical precipitation risk.
✈️ Travel Logistics: Approximately 413 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Canada, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 18.4°C (refreshing tonic). Wave conditions are generally lake-like with heights around 0.31m.
📊 Historical Extremes: The hottest August 21 recorded in the last 30 years saw temperatures hit 29.8°C in 2018, while the coldest dropped to 12.5°C in 2025.